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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4 mag strikes near Yuzawa in Japan

Earthquake location 38.9634S, 140.515WA light earthquake with magnitude 4 (ml/mb) was reported 22 kilometers (14 miles) from Yuzawa in Japan on Saturday. The earthquake occurred at a depth of 139.05 km (86 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude 140.515 East, latitude 38.9634 North, depth = 139.05 km. The temblor was reported at 08:41:39 / 8:41 am (local time epicenter). All ids that are associated to the event: us100036bv. Unique identifier: us100036bv. Global time and date of event 14/08/15 / 2015-08-14 23:41:39 / August 14, 2015 @ 11:41 pm UTC/GMT.

Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Yamoto, Shiogama, Sendai. Event epicenter was 84 km (52 miles) from Sendai (c. 1 063 100 pop), 83 km (52 miles) from Sendai-shi (c. 1 063 100 pop), 81 km (51 miles) from Yamagata-shi (c. 254 500 pop), 57 km (36 miles) from Sakata (c. 100 400 pop), 66 km (41 miles) from Tsuruoka (c. 99 800 pop), 63 km (39 miles) from Kitakami (c. 93 900 pop). Country/countries that might be effected, Japan (c. 127 288 000 pop).

There are an estimated 13,000 light earthquakes in the world each year. In the past 24 hours, there have been two, in the last 10 days four, in the past 30 days four and in the last 365 days seven earthquakes of magnitude 3.0 or greater that was reported nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Did you feel the quake?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 22 km S of Yuzawa, Japan. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude 140.515° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 38.9634° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 139.05 km Depth of the event in kilometers.
Place 22km S of Yuzawa, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-08-14 23:41:39 Time when the event occurred. UTC/GMT
Updated 2015-09-12 04:21:42 Time when the event was most recently updated. UTC/GMT
Timezone offset 540 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 The maximum reported intensity for the event.
MMI The maximum estimated instrumental intensity for the event.
Alert Level The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status reviewed Indicates whether the event has been reviewed by a human.
Tsunami 0 This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG 246 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network us The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,us, A comma-separated list of network contributors.
Number of Stations Used The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.113 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.45 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 121 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us100036bv Id of event.
Event Code 100036bv An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us100036bv, A comma-separated list of event ids that are associated to an event.

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